/Engine/Plugins/Runtime/ZoneGraph/Source/ZoneGraph/Public/ZoneGraphTypes.h
Flags describing the details of a linked adjacent lane. Flags are only used for adjacent lanes.
enum EZoneLaneLinkFlags { None = 0, All = ((uint8) 0xff), Left = 1 << 0, Right = 1 << 1, Splitting = 1 << 2, Merging = 1 << 3, OppositeDirection = 1 << 4, }